# Formidable Forms vulnerabilities

Source: https://junglewise.ai/threats/technologies/formidable-forms  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/formidable-forms.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Formidable Forms: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-89435, was published on 30 October 2026. 2 vulnerabilities in the last four weeks, up 100% on the four before (1).

## Counts

- Last 7 days: 0
- Last 30 days: 2
- Last 90 days: 4
- All time: 4 (0 critical, 0 exploited in the wild)

## About Formidable Forms

WordPress plugin for creating and managing forms on WordPress sites.

## Latest Formidable Forms vulnerabilities

- [CVE-2026-89435: Formidable Forms arbitrary plugin installation vulnerability](https://junglewise.ai/threats/cve-2026-89435-the-formidable-forms-wordpress-form-builder-for-contact-forms) (high, CVSS 8.8, published 30 Oct 2026)
- [CVE-2026-85642: Formidable Forms unauthenticated payment gateway rate limit bypass](https://junglewise.ai/threats/cve-2026-85642-the-formidable-forms-wordpress-plugin-before-7-0-does-not-verify) (info, published 21 Oct 2026)
- [CVE-2026-19857: Formidable Forms unauthenticated arbitrary shortcode execution](https://junglewise.ai/threats/cve-2026-19857-formidable-forms-unauthenticated-arbitrary-shortcode-execution) (medium, CVSS 4.8, published 16 Sep 2026)
- [CVE-2026-18331: Formidable Forms Stored Cross-Site Scripting via frm_user_id parameter](https://junglewise.ai/threats/cve-2026-18331-formidable-forms-stored-cross-site-scripting-via-frm-user-id) (high, CVSS 7.2, published 26 Aug 2026)

## Most severe Formidable Forms vulnerabilities

- [CVE-2026-89435: Formidable Forms arbitrary plugin installation vulnerability](https://junglewise.ai/threats/cve-2026-89435-the-formidable-forms-wordpress-form-builder-for-contact-forms) (high, CVSS 8.8, published 30 Oct 2026)
- [CVE-2026-18331: Formidable Forms Stored Cross-Site Scripting via frm_user_id parameter](https://junglewise.ai/threats/cve-2026-18331-formidable-forms-stored-cross-site-scripting-via-frm-user-id) (high, CVSS 7.2, published 26 Aug 2026)
- [CVE-2026-19857: Formidable Forms unauthenticated arbitrary shortcode execution](https://junglewise.ai/threats/cve-2026-19857-formidable-forms-unauthenticated-arbitrary-shortcode-execution) (medium, CVSS 4.8, published 16 Sep 2026)
- [CVE-2026-85642: Formidable Forms unauthenticated payment gateway rate limit bypass](https://junglewise.ai/threats/cve-2026-85642-the-formidable-forms-wordpress-plugin-before-7-0-does-not-verify) (info, published 21 Oct 2026)

## Vulnerabilities per week

2 vulnerabilities in the last four weeks, up 100% on the four before (1).

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 1 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 1 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 1 | 0 | 0 |
| 26 Oct 2026 | 1 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Formidable Forms vulnerabilities", https://junglewise.ai/threats/technologies/formidable-forms, 9 November 2026.